I started giving both my girls water at about 5ish months .... and never boiled it. I'm in Melbourne also, the water is very good here! Once they're eating food and sticking all manner of stuff in their mouths it's really not necessary.

Yesterday I found 6 month old DD sucking on a shoe. Gross! But yeah, I think that's a bigger worry than a sip of clean tap water

I never gave my ds boiled water. He started on reflux meds at two months old, which were dissolved in water. I asked the Pediatrician whether the water needed to be boiled and he said no. So, I always just gave him tap water.

I also gave him bought bottled water when we were out and about. I can't see a problem with that.

What exactly is in tap water that can cause issues? (Excuse my ignorance)

I'm just talking about water for drinking not for use with formula.

Since starting solids DD poo is more pasty and she's going less regularly so I think she'd benefit from more water but I'm always forgetting to boil it up, then I end up just not giving it to her. She's bf so it's ok I guess but I'd like her to get used to drinking From a cup or bottle so I can get some time out :0

I boil our water (in Melbourne too) and pass it through the Brita filter before giving to bub. I just did it to be safe, no other reason. I use that same water for making formula too. I intend to stop sterilising things once he can have solids.